Hair curler



Aug. 15, 1933. K, STRQHER 1,922,061

HAIR CURLER Filed Feb. 25, 1932 INVENTOR. KARL G. STPO /ER /.f) BY Ma/1Q46%..

A TORNEY Patented Aug. 15, 1933 UNITED srArEs 1,922,061 v HAIR CURLEREarl Georg Striiher, Rothenkirchen in Vogtland, Germany ApplicationFebruary 25, 1932, Serial No. 594,988, and in Germany July 23, 1931 5Claims.

This invention relates to improvements in the art of hair waving andrefers more particularly to a curling rod upon which a strand of hairiswound during a hair-waving operation.

Curling rods are known consisting of an elongated cylinder used forwinding a strand of hair thereon. It has been noticed that suchcylinders are quite inconvenient in use as the hair is liable to slip onthe smooth surface thereof and for this reason special clamping meanshad to be employed to clasp the hair tightly on the curler, such means,however, being quite cumbersome and increasing the cost of the device.

An object of this invention is to eliminate the above-mentioneddrawbacks by providing a hair curler adapted to tightly hold a strand ofhair wound thereon without the aid of special clamping means on thecurler.

Another object is to improve the art of hair 'iwaving by unevenlydistributing the heat supplied to a wound strand of hair, suchdistribution being due to the particular shape of the hair curlercarrying said strand.

I have found that the above objects can be realized by providing a haircurler having at least one longitudinal edge, more or. less sharplydefined, instead of the cylindrical curlers used heretofore or,preferably, the curler may have a polygonal cross-section so as topresent a plurality of edges.

I have also found that the art of producing hair waves by winding astrand of hair and subjecting it to heat may be improved by providing ahair curler, the length of which is divided into a plurality of portionshaving diiferent cross-sections. Preferably, the cross-sectional area ofeach portion is uniform and the smallest portion is disposed in themiddle of the curler, with portions of gradually increasing sizeextending toward both ends so that, in effect, a stepped formation ofsaid portions is produced. Due to this arrangement, a strand of hair isheld tightly on the curler and an uneven distribution of heat isobtained during the treatment.

The invention will appear more clearly from the following detaileddescription, when taken in connection with the accompanying drawing,which illustrates preferred embodiments of the inventive idea.

In the drawing- Figure 1 shows one form of curling rod in sideelevation;

Figure 2 is an enlarged transverse section on the line 22 of Figure 1;

Figures 3 and 4 are side elevations of modified forms of the curlingrod; and

Figure 5 is a similar view of another form of curling rod of theso-called vertical type.

, The curling rod shown in Figures 1 and 2 com- 69 prises an internalelectric heatingelement 6 surrounded by a casing 7 having the shape of aregular hexagon in cross-section. The casing 7 carries two knurledrollers 8 situated at the opposite ends of the casing and used as fingerpieces for holding the curling rod during the winding of a strand ofhair thereon. The heating element 6 may be secured to the casing 7 byany suitable means, such as a binder 9 inserted between said element andthe casing at the ends of the latter. 7O Both ends of the heatingelement 6 project beyond the casing 7 and are adapted to receiveconnector plugs 10 for supplying current to said element.

In the modification shown in Figure 3, the casing 11 is also hexagonalin cross-section and, in addition, is tapered gradually from both endstoward the middle thereof. By making the rod with edges, it is apparentthat when a strand of hair is wound thereon, it will be better heldagainst slipping circumferentially about the rod than when a cylindricalrod is employed.

The casing of the curling rod shown in Figure 4 is composed of aplurality of portions 12a, 12b, and 120, which may be square incross-section, if desired, and which are firmly connected with eachother, or made from one piece of material. Each of said portions is ofuniform crosssection throughout its length, but diifers incrosssectional area from the next adjacentportion so that with thesmallest portion 120 in the center a stepped formation is provided fromone end of the rod to the other. The casing is provided with a pluralityof apertures 13 for the purpose of increasing the heating capacity ofthe curling rod.

The modification shown in Figure 5 refers to a so-called verticalcurling rod which is placed at right angles to the adjacent portion ofthe scalp during the hair-waving process. This curling rod comprises aninternal heating element 6, a casing 14 having the shape of a regularpolygon in cross-section, and a supporting member 15.

Due to the angular shape of the rod casing, 05

the hair wound thereon is heated while in a sharplyebent form at thelongitudinal edge or edges of the casing, resulting in the production ofhair waves which are more durable than those produced on cylindricalcurlers.

What is claimed is:

1. A curling rod for use in waving hair, comprising an internal heatingelement, and a casing of polygonal cross-section surrounding saidelement, said casing being tapered from the ends toward the middlethereof.

2. A curling rod for use in waving hair, comprising an internal heatingelement, and 8. casing surrounding said element and including aplurality of portions, each of a different crosssectional area from anext adjacent portion and 7 being rigidly connected one to the other instepped formation.

3. A curling rod for use in waving hair, comprising an internal heatingelement, and 2. casing surrounding said element and including aplurality of rigidly interconnected portions, each of uniform polygonalcross-section throughout its length and of a difierent cross-sectionalarea from a next adjacent portion.

4. A curling rod for use in waving hair, comprising an internal heatingelement, and a casing KARL GEORG s'rRoHER.

